package java9_3;

/**
 * @author oldliu
 * @since 1.0
 */
public class PetLover extends PetOwner {
    public PetLover(String n) {
        super(n);
    }

    @Override
    public Tugou buy(int money) {
        return null;
    }

//    @Override//有错
//    public Gou sell(int money) {
//         return null;
//    }
}
